回答編集履歴
1
調整
answer
CHANGED
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@@ -19,4 +19,35 @@
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19
19
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<input type="checkbox" value="test3店" name="store">test3店<br>
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20
20
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<input type="button" class="btn btn-primary" value="選択店舗追加" onclick="storecheck();">
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21
21
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<ul id="storeul"></ul>
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22
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+
```
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23
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+
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24
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# 削除ボタン
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25
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```javascript
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26
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<script>
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27
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function storecheck() {
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28
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var store = document.querySelectorAll("[name=store]:checked");
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29
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var storeul = document.querySelector("#storeul");
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30
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var storeadded = [...storeul.querySelectorAll('li')].map(x=>[...x.childNodes].filter(x=>x.nodeType==3)[0].textContent);
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31
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store.forEach ( x=> {
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32
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const v = x.value;
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33
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if(!storeadded.includes(v)) {
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34
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const txt = document.createTextNode(v);
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35
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const deletebutton = Object.assign(document.createElement('button'),{type:"button",textContent:"削除",className:"del"});
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36
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const li = [txt,deletebutton].reduce((x,y)=>(x.appendChild(y),x),document.createElement('li'));
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37
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storeul.appendChild(li);
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38
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}
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39
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});
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40
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if(store.length==0) alert("項目が選択されていません");
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41
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}
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42
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document.addEventListener('click',e=>{
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43
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if(e.target.classList.contains('del')){
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44
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e.target.closest('li').remove();
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45
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}
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46
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});
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47
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</script>
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48
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<input type="checkbox" value="test1店" name="store">test1店<br>
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49
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<input type="checkbox" value="test2店" name="store">test2店<br>
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50
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<input type="checkbox" value="test3店" name="store">test3店<br>
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51
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<input type="button" class="btn btn-primary" value="選択店舗追加" onclick="storecheck();">
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52
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<ul id="storeul"></ul>
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22
53
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```
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